Finding the Fourth Proportional to 9,404.75, 12,978.97 and 5,371.93

Step by Step Solution

1. Step 1: Write the proportion equation
   9,404.75 : 12,978.97 = 5,371.93 : x
2. Step 2: Convert to fraction form
   9,404.75/12,978.97 = 5,371.93/x
3. Step 3: Cross multiply
   9,404.75x = 12,978.97 × 5,371.93
4. Step 4: Simplify right side
   9,404.75x = 69,722,066.85
5. Step 5: Solve for x
   x = 69,722,066.85/9,404.75
6. Step 6: Final answer
   x = 7,413.50